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Did you know?
The familiar sounds of your heart are made by the heart's valves as they open and close.
Did you know?
Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
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If you could remove all of your skin, it would weigh up to 5 pounds.
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Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.